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dedylja [7]
3 years ago
15

Solve for x. 7x - 3 = 4x - 9

Mathematics
2 answers:
artcher [175]3 years ago
7 0

Answer:

x= -2

Step-by-step explanation:

7x-3=4x-9

3x-3= -9

3x= -6

x= -2

oee [108]3 years ago
3 0

Answer:

x=-2

Step-by-step explanation:

7x=4x-6

7x-4x=4x-6-4x

3x=-6

3x/3 = -6/3

x=-2

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Triangle A has a height of 2.5 cm and a base of 1.6 cm. The height and base of triangle B are proportional to the height and bas
tatuchka [14]

Answer:

A, D, E

Step-by-step explanation:

The ratio height : base is ...

... 2.5 : 1.6

... = 25 : 16

... = 1.5625 : 1

You can eliminate the bogus answers B and C because ...

... B: the numbers are too close together. The larger would need to be near 13 for the smaller one to be 9.

... C: the base is larger than the height, so the ratio is less than 1, not greater than 1.

_____

<em>Comments on other answers</em>

A: the scale factor is 1.1

D. the scale factor is 0.5

E. the scale factor is 0.8

7 0
3 years ago
Read 2 more answers
1. The proceeds of a $7,500.00, 10 percent simple discounted note for 85 days is
Simora [160]

Answer:

  it depends (see below)

Step-by-step explanation:

<u>Exact Interest</u>

Exact interest is calculated on the basis of a 365-day year, so the exact interest on the loan would be ...

  I = Prt = $7500·0.10·(85/365) = $174.66

Then the proceeds would be ...

  $7500 -174.66 = $7,325.34 . . . . . matches first option

__

<u>Ordinary Interest</u>

Exact interest is calculated on the basis of a 360-day year, so the ordinary interest on the loan would be ...

  I = Prt = $7500·0.10·(85/360) = $177.08

Then the proceeds would be ...

  $7500 - 177.08 = $7,322.92 . . . . . matches last option

_____

I suggest you check your reference materials (text or course examples) to see what year length is expected to be used in this calculation. Some on-line references show it one way; others show it the other way.

8 0
4 years ago
The amount of time that a customer waits on hold at a call center can be modeled by a uniform distribution on the interval from
Contact [7]

Using the uniform distribution, we have that:

a) The density curve is given at the end of this question.

b) 16.67% of the time does a customer have to wait between 100 and 120 seconds.

-----------------

The uniform distribution has two bounds, a and b, and the probability of finding a value between c and d is given by:

P(c \leq X \leq d) = \frac{d - c}{b - a}

  • Uniform distribution on the interval of 0 to 120 seconds, thus a = 0, b = 120.

The proportion between 100 and 120 seconds is:

P(100 \leq X \leq 120) = \frac{120 - 100}{120 - 0} = \frac{1}{6} = 0.1667

0.1667*100% = 16.67%

16.67% of the time does a customer have to wait between 100 and 120 seconds.

A similar problem is given at brainly.com/question/15855314

4 0
3 years ago
Consider the exponential function f(x) = 2(3x) and its graph. The initial value of the function is
olga2289 [7]
We are given an exponential function:

f (x) = 2e^(3x)

The standard form of an exponential function is Aoe^(bx), 

where Ao is the initial value of the function
b is the growth factor of the function

To graph the function, assign values of x then solve for the values of y corresponding the values of x. 
8 0
3 years ago
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Does anyone know what 33 8/9 is simplified??
Nonamiya [84]

Answer:

it already is simplified

Step-by-step explanation:

6 0
4 years ago
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